# You could use FreeCADto model trusses, but at the moment FreeCAD won't be able to show deformations. There is a... Commenting post [123](/?blog/2015-123): You could use FreeCADto model trusses, but at the moment FreeCAD won't be able to show deformations. There is a FEM workbench that can already do a lot, though. Have a look on the FreeCAD forum at in the FEM section to have an idea of what people there are currently doing. Frame3DD could be made to work with/inside FreeCAD at some point... We wouldneed to extend/finish the analytic stuff in Arch structural objects, then find soem people who know Frame3DD well to work on a plugin to interact with it... Another app I was looking at is PyBar, which is more simple (2D only) but is easy to connect to FreeCAD...